Welcome to the Volunteer State, Tyler!
Tennessee is absolutely NOTHING like California as it relates to emissions testing. As stated or inferred by some of the other Forum members, "testing" varies and is geared primarily toward vehicle registration.
The state is actually divided (for all pratical purposes) into three different regions surrounding the major cities of Chatanooga in the East, Nashville in the central part of the state, and Memphis in the West.
I am in the Memphis area and can speak to that area. There is registration testing for all vehicles, i.e. safety (lights, brakes, wipers and the sniffer test) for cars registered in the City. There are NO inspection requirements for people registering their vehicles in the area (Counties) around the city - - go figure. That means if one lives in the suburbs outside of the city, you don't have to have your vehicle inspected prior to registration.
Again, I am not aware of anyone being stopped on the road anywhere in the state for a sniffer test. We don't have the same atmospheric problems that exist in California.
I eoutinely travel all over the U.S. and in my opinion Tennessee is the ABSOLUTE best place to be.
Again, welcome to our state.
Do the right thing!